Watch: Mayweather makes it rain $1 bills all over McGregor

Floyd Mayweather finally did something notable with that school bag.

During his portion of the disastrous Brooklyn press conference Thursday, Mayweather tried to capitalize on a crowd that seemed to turn against a shirtless Conor McGregor by showering the Irishman in cash as if "The Notorious" was one of his strippers.

Of course, McGregor made an effort to get the last laugh, pointing out that the bills were only worth a dollar apiece - but the damage from his bumbling, incoherent rant on the mic had already been done.